Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KE7DUB callsign genealogy
Currently held by WINFIELD, KAREN R
The FCC publishes a previous_call_sign on
every amateur license — a self-link to the licensee's prior callsign.
Following those links produces the chain below.
Previous callsigns
Older callsigns held by KE7DUB's current licensee, walking backwards.
- WINFIELD, KAREN RAZgranted 2009-02-09cancelled 2009-04-03
Successor callsigns
Callsigns held now by people who previously held KE7DUB.
- Nicholson, John RAZgranted 2015-04-03
All historical holders
Every license row we've seen with the callsign KE7DUB, oldest first.
- Nicholson, John R AZ2005-05-04 → cancelled 2005-05-28
- WINFIELD, KAREN R AZ2019-03-22 active